Ayer previously explained the motivation behind the tattoo, tying it to Joker taking a particularly bad beating from Batman as a result of the murder of Robin.

"Joker killed Robin and Batman basically smashes his teeth out and locks him up in Arkham Asylum," Ayer told Empire in 2016. "It’s in the asylum where Joker would have done the ‘damaged’ tattoo as a message to Batman saying, ‘You’ve damaged me. I was so beautiful before and now you’ve destroyed my face.’ That’s where the grill comes from.”